1 tbsp. white vinegar
1 tbsp. water
7 lg. eggs
3/4 slice white bread
2 c. walnuts
6 oz. German sweet chocolate
1 c. sugar
1 tbsp. baking powder
Pinch salt
1 stick unsalted butter
1 tbsp. vanilla

Butter 9-inch springform pan. Put parchment on and butter it too.

In small bowl, mix vinegar and water. Put egg whites in processor, mix 8 seconds. Add vinegar and water, mix 30 seconds (or until stiff). Transfer to large mixing bowl.

In processor, put bread, nuts, chocolate, sugar, baking powder and salt. Turn processor on and off 4 times then process for 1 minute until finely chopped. Take stick of butter, cut in 8 pieces and scatter over mixture. Process 30 seconds, stopping once to scrape side of bowl.

Add egg yolks and vanilla, process until all ingredients are combined. Add 1/3 egg whites at a time, some streaks of white should be seen. Transfer batter to pan. Bake at 350 degrees for 1 hour or until toothpick comes clean.

GLAZE:

2 tbsp. butter
2 tbsp. water
3 oz. sweet chocolate (broken)
1/4 c. powdered sugar
2 tsp. vanilla

Melt butter and water (keep hot). Process chocolate and sugar until finely mixed then add hot butter and water. When melted add vanilla and process 5 seconds. Refrigerate until thick.